private static void AssertReadLines(IList <string> lines)
{
using (var r = new StringListReader(lines)) {
int lineno = 0;
foreach (var expected in lines)
{
lineno += 1;
var actual = r.ReadLine();
Assert.AreEqual(expected, actual, $"Line #{lineno}");
}
Assert.IsNull(r.ReadLine(), "Did not reach EOF");
}
}
public void PeekTest()
{
global::System.Char[] buffer = new char[10];
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Peek());
Assert.AreEqual('A', r.Peek());
Assert.AreEqual('A', r.Read());
}
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Peek());
Assert.AreEqual(2, r.Read(buffer, 0, 5));
Assert.AreEqual('A', buffer[0]);
Assert.AreEqual('B', buffer[1]);
}
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Read());
Assert.AreEqual('B', r.Peek());
// Read after peeking the last char in a line will get us
// the next line too.
Assert.AreEqual(3, r.Read(buffer, 0, 5));
Assert.AreEqual('B', buffer[0]);
Assert.AreEqual('C', buffer[1]);
Assert.AreEqual('D', buffer[2]);
}
using (var r = new StringListReader(new[] { "AB", "CD", "EF" }))
{
Assert.AreEqual('A', r.Read());
Assert.AreEqual('B', r.Peek());
// Read after peeking the last char in a line will get us
// the next line too.
Assert.AreEqual("BCD", r.ReadLine());
}
}